Anchoring device.



' G; F. MlNNl-S.

ANCHORING DEVICE.

APPLICATION man JULY 1o. |911.

Patented. Mar. 26, 1918.

l; ii l, l: 1 ii I i GEORG-E F. MINNIS, OF CHICAGO, ILLINOIS.

ANCHORING DEVICE.

' Specification. of Letters Patent.

Patented Mar. 2d, 1218.

Application ined July 1o, 1917. serial No. 179,679.

To all whom zt may concern:

Be it known that I, GEORGE F. MINNIs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Anchoring Devices, of which the following is a specification.

This invention relates to improvements in anchoring devices and more particularly to an anchor for attachment to .a window casing.

011e of the objects of my invention is to provide an anchor with a bolt taking en- 'tirely through a window casing and carrying on its outer end a pair of headed projections for engagement by a clip, such as is carried on the ends of safety ropes used by window cleaners.

Another object of my invention is to provide such an anchor which may be readily attached to buildings which have been completed without the necessity of interfering with the brick or other material used in the construction of the walls.

A further object is to provide an anchor which may be easily installed, is adaptable to varying conditions and has a higher factor of safety.

Still other and further objects will become apparent to those skilled in the art from a considera-tion of the description and drawings, wherein Figure 1 is a perspective view of a fragment of a window casing, parts being broken away, showing my improved anchor attached thereto.

Fig. 2 is a horizonal sectional view through the window casing and anchor, and;

- Fig. 3 is a side elevation of the anchor detached from the building.

The equipment of buildings already constructed with safety devices for window washers has, in the past, received comparatively little consideration, the common method being to use lag screws taking into the wooden frame. In the case of buildings in course of construction the anchor devices usually take into the brick or other facing material and are provided with anchoring extensions held in place by the bricks and mortar.

Lag screws have, however, proved to be most dangerous, having a Small factor of Safety and many instances have occurred where 'the screws have either comparatively broken oil' or death of those safety.

In the present invention I have so arranged the various parts as to eliminate in So far as possible any likelihood of breakage or pulling out and have thus anchored the safety device in a manner acceptable to building commissioners having supervision of such devices.

In the drawings I have illustrated a ferred embodiment pulled out resulting in the dependent upon them for preof the invention applied to a Window casing wherein the numeral 10 indicates the sash board against the ends of which abut the outer and inner boards 11 and 12, respectively.

A substantially rectangular base member 13 is adapted to overlie the outer board 11 and is provided on its rounded outer surface with vertically spaced apart outwardly extending projections 14 provided with heads 15 for engagement with the clips which are attached to the ends of the safety ropes used by Window washers. From the rear face 0f the base 13 extends an elongated bolt 16 formed integral with the head and of a length sufficient to pass entirely through the outer boards 11 and 12 and sash board 10, its inner end being screw threaded, as at 17, for engagement with the nut 18. A plate or washer 19 is perforated to receive the bolt and has bearing against the inner board 12, a lock washer 20 underlying the nut to prevent its becoming loosened.

The outer end of the bolt 1G where it joins the base 13 is enlarged and given a tapered conical form, as at 21, to snugly fit the conically reamed out opening 22 formed in the outer board 11 and also to make a strong enlarged connection with the base. To prevent the possibility of the base 13 turning upon the bolt as an axis I have provided at the upper and lower inner face thereof substantially opposite the heads 15 spurs `or pointed projections 22 which take into the outer board 11 as the nut 18 is tightened.

In applying the device it is evident that the same may be attached to window casings already in use by simply boring directly through the outer and inner boards 11 and 12 and sash board 10. The opening in the outer board 11 is then reamed on a taper to receive the tapered end 21 of the anchor bolt. The projections 14 may be inclined inwardly somewhat, as indicated in Figs. 2

and 3, so as to be more readily engaged by the clips on the window washers harness and as the anchor is symmetrical upon a horizontal plane it is evident that even `though these parts be angled no lefts and rights are necessary.`

Whereas I have illustrated and described a single embodiment of my invention it will be obvious to those skilled in the art that various changes or modifications may be made therein without departing from the spirit of the invention o1' the scope of the appended claim.

Having described my invention, what I claim is: I

An anchor for engagement by a window washers harness and for attachment to a wooden window frame having outer and inner parallel boards spaced apart by a sash board, said anchor comprising integral members consisting of an elongated base to overlie the outer board, headed projections extending outwardly from the end portions and offset to one Side of the base, an elongated bolt formed integral with the base and projecting rearwardly therefrom through openings formed in the outer, inner and sash boards, and a nut in screw threaded engagement with to clamp the anchor in position, the outer end of the bolt adjacent its juncture with the base being enlarged and tapered for tight engagement with the opening in the outer board.

In testimony whereof I hereunto set my hand.

GEORGE r. MINNis.

the inner end of the bolt 

